Old men forget.
D000368:Aged; D000818:Animals; D005260:Female; D006624:Hippocampus / Q000502:physiology; D006801:Humans; D008297:Male; D008568:Memory / Q000502:physiology*; D008569:Memory Disorders / Q000209:etiology / Q000503:physiopathology; D008570:Memory, Short-Term / Q000502:physiology; D051381:Rats